[BAEL-4806] - How to test an LDAP connection from a client: code (#11664)

* working code

* added unit test

* [BAEL-4806] - How to test an LDAP connection from a client

Ticket: http://jira.baeldung.com/browse/BAEL-4806
Draft: https://drafts.baeldung.com/wp-admin/post.php?post=125004&action=edit

* removing draft project

* applying requested changes

* 1. renaming package to comply with java conventions;
* 2. breaking class into methods to enhance readability;
* 3. creating an 'execute' method so it's not necessary to call 'main';

* requested changes

* 1. adding final keyword to constants;
* 2. using diamond operator;

* Update LdapConnectionToolManualTest.java

core-java-modules/core-java-jndi/src/test/resources/ldap-connection-tool.ldif

@@ -0,0 +1,34 @@
+version: 1
+dn: dc=baeldung,dc=com
+objectClass: top
+objectClass: dcObject
+objectClass: organization
+dc: baeldung
+o: baeldung.com
+
+dn: cn=admin,dc=baeldung,dc=com
+objectClass: simpleSecurityObject
+objectClass: organizationalRole
+cn: admin
+description: LDAP administrator
+userPassword: password
+
+dn: uid=newton,dc=baeldung,dc=com
+objectClass: inetOrgPerson
+objectClass: organizationalPerson
+objectClass: person
+objectClass: top
+cn: Isaac Newton
+sn: Newton
+uid: newton
+userPassword: password
+
+dn: uid=gauss,dc=baeldung,dc=com
+objectClass: inetOrgPerson
+objectClass: organizationalPerson
+objectClass: person
+objectClass: top
+cn: Carl Friedrich Gauss
+sn: Gauss
+uid: gauss
+userPassword: password